My silgranite sink has no scratches or nicks after about 18 months of use. I would assume the drain board part would hold up as well as the sink bowls do. If the sink you are inquiring about is the sink pictured below are you aware that it requires a 54 inch cabinet.

It seems like a great idea to have a side drainer, yet I never see this sink on the Kitchens Forum. I wonder if it's due to the individual bowl dimensions. I didn't see the dimensions, but just be careful about the size of each bowl. I would be concerned that neither side is big enough to soak a pan or wash a pot easily. Check the the interior dimensions of each bowl--not just the exterior--before you make this purchase. Call Blanco if you cannot find the information online; they have great customer service.